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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647/* SPDX-License-Identifier: GPL-2.0-only *//* * Generic arch dependent fprobe macros. */#ifndef __ASM_GENERIC_FPROBE_H__#define __ASM_GENERIC_FPROBE_H__
#include <linux/bits.h>
#ifdef CONFIG_64BIT/* * Encoding the size and the address of fprobe into one 64bit entry. * The 32bit architectures should use 2 entries to store those info. */
#define ARCH_DEFINE_ENCODE_FPROBE_HEADER
#define FPROBE_HEADER_MSB_SIZE_SHIFT (BITS_PER_LONG - FPROBE_DATA_SIZE_BITS)#define FPROBE_HEADER_MSB_MASK \ GENMASK(FPROBE_HEADER_MSB_SIZE_SHIFT - 1, 0)
/* * By default, this expects the MSBs in the address of kprobe is 0xf. * If any arch needs another fixed pattern (e.g. s390 is zero filled), * override this. */#define FPROBE_HEADER_MSB_PATTERN \ GENMASK(BITS_PER_LONG - 1, FPROBE_HEADER_MSB_SIZE_SHIFT)
#define arch_fprobe_header_encodable(fp) \ (((unsigned long)(fp) & ~FPROBE_HEADER_MSB_MASK) == \ FPROBE_HEADER_MSB_PATTERN)
#define arch_encode_fprobe_header(fp, size) \ (((unsigned long)(fp) & FPROBE_HEADER_MSB_MASK) | \ ((unsigned long)(size) << FPROBE_HEADER_MSB_SIZE_SHIFT))
#define arch_decode_fprobe_header_size(val) \ ((unsigned long)(val) >> FPROBE_HEADER_MSB_SIZE_SHIFT)
#define arch_decode_fprobe_header_fp(val) \ ((struct fprobe *)(((unsigned long)(val) & FPROBE_HEADER_MSB_MASK) | \ FPROBE_HEADER_MSB_PATTERN))#endif /* CONFIG_64BIT */
#endif /* __ASM_GENERIC_FPROBE_H__ */